You are so new hamitduk, I think you might not know what questions to ask...
Are you allowed to have a wind-gen tower at your location? if yes, how high can you afford/or are allowed? (higher is better, MUCH better)
Once you determine how high a tower you can have, What kind of wind do you have up there? It might be useful to data-log a rough wind profile, then some suggestions and comparisons to existing systems can be made.
What kind of voltage do you want? 12/24/or 48 are the most common. None are "best", each has benefits and drawbacks. What do you want to do with the wind-gen voltage? Most charge a large battery pack (with a dump load for when the pack is full) then put the battery power through an inverter to get 120 VAC to run TV's and lights.
Magnets come in different strengths, the stronger the better, but stronger is more expensive. The strength of the magnets will affect the rest of the design. The invisible magnetic field is a set shape, the copper wire coils must fill that shape, but no extra. (copper is expensive, and any extra coil wire length that is "unfluxed" adds resistance with no added generation)
Since the magnetic flux shape is fixed, more wraps of thinner wire will provide a higher voltage at a lower RPM. Fewer wraps of thicker wire will be the same size, but provide lower volts, but can handle higher current.
Some enthusiasts make the two magnet rotors, and then insert one prototype coil to test for their target volts as they spin the rotors at their sites wind-gen RPM's. Once the proper wire and wraps "for your site and system" is determined, you can proceed to finish the stator.
Do you want to generate more from lower winds, or the higher winds at your site. If you choose poorly, the generator might overheat, or generate less power than what was possible.
At what RPM/wind speed do you want the unit to "cut-in" and begin producing power, at what RPM/wind-speed do you want it to furl away so it doesn't overheat or fly apart from excessive RPM's?
Best of luck, and have fun!
